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associated multiplying factor, it is necessary to know
what combination of stores is installed. Enter the chart
at the top, move down to the illustration that matches
the desired combination, and then move right and read
ÙF and the multiplying factor. Use the multiplying factor
and data in Section VI, Cruise to determine the resulting
change in torque.
7A.24. CONDITIONS.
The drag chart is based on the mission configuration
having zero change in frontal area. If the WSPS is
installed, increase the frontal area for all configurations in
the drag table by 1.9 sq ft and increase the multiplying
factor by 0.19.
7A-66 Change 3
TM 1-1520-238-10
Figure 7A-18. Drag Chart and Authorized Armament Configurations (Sheet 1 of 2)
7A-67
TM 1-1520-238-10
Figure 7A-18. Drag Chart and Authorized Armament Configurations (Sheet 2 of 2)
7A-68
TM 1-1520-238-10
7A.25. DESCRIPTION.
Section VIl. CLIMB-DESCENT
The climb descent chart (fig 7A-19) shows the change in
torque (above and below the torque required for level
flight under the same configuration, gross weight, and
atmospheric conditions) to obtain a desired rate of
climb or descent.
7A.26. USE OF CHART.
The primary use of the climb-descent chart is illustrated
by the example. To determine the change in
torque, it is necessary to know the gross weight and the
desired rate of climb or descent. Enter the chart at the
desired rate of climb or descent, move right to the
known gross weight, and then move down and read the
torque change. This torque change must be added to
(for climb) or subtracted from (for descent) the torque
required for level flight (obtained from the appropriate
cruise chart) to obtain a total climb or descent torque.
By entering the chart with a known torque change, and
moving up to the known gross weight and then left, the
corresponding rate of climb or descent can also be obtained.
7A.27. CONDITIONS.
The climb-descent chart is based on 100% rotor rpm.
7A-69
TM 1-1520-238-10
Figure 7A-19. Climb-Descent Chart
7A-70
TM 1-1520-238-10
CHAPTER 8
NORMAL PROCEDURES
Section I. CREW
8.1 CREW DUTIES.
8.1.1 PILOT. The pilot in command is responsible for
all aspects of mission planning, preflight, and operation
of the helicopter. He will assign duties and functions to
all other crewmembers as required. Prior to or during
preflight, the pilot will brief the CPG on items pertinent
to the mission; e.g., performance data, monitoring
of instruments, communications, and emergency procedures.
8.1.2 CPG. The CPG must be familiar with the pilots
duties. The CPG will assist the pilot as directed.
8.2 CREW BRIEFING.
A crew briefing shall be conducted to ensure a thorough
understanding of individual and team responsibilities.
The briefing should include, but not be limited to, CPG
and ground crew responsibilities, and the coordination
necessary to complete the mission in the most efficient
manner. A review of visual signals is desirable when
ground guides do not have direct voice communications
link with the crew.
8.2.1
8.2.2
a.
b.
c.
8.2.3
a.
b.
c,
Crew Introduction.
Equipment.
Personal, to include I.D. tags.
Professional.
Survival.
Flight Data.
Route.
Altitude.
Time enroute.
d.
8.2.4
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
8.2.5
a.
b.
c.
DUTIES
Weather.
Normal Procedures.
Entry and exit from aircraft.
Seating.
Seat Belts.
Movement in aircraft.
Internal communications.
Security of equipment.
Smoking.
Refueling.
Weapons.
Protective masks.
Emergency Procedures.
Emergency exits.
Emergency equipment.
Emergency landing/ditching procedures.
8.3 MISSION PLANNING.
Mission planning begins when the mission is assigned,
and extends to the preflight check of the helicopter. It
includes, but is not limited to, checks of operating limits
and restrictions; weight, balance, and loading; performance;
publications; flight plan; and crew briefings.
The pilot in command shall ensure compliance with the
contents of this manual that are applicable to the mission.
8.4 AVIATION LIFE SUPPORT EQUIPMENT (ALSE).
All ALSE required for the mission; e.g. helmets, gloves,
survival vests, survival kits, etc , shall be checked.
8-1
WARNING
TM 1-1520-238-10
Section II. OPERATING PROCEDURES AND MANEUVERS
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